The 4 MiB cap was justified against MAX_MESSAGE_SIZE (16 MiB), but that is the frame DECODER bound. Responses are gated by the writer's admission budget: a frame over DISPATCHER_CONTROL_QUEUE_MAX_BYTES (1 MiB) is demoted to the legacy-response lane, which is refused once the producer queue passes 2 MiB. A 4 MiB window is ~5.46 MiB of base64, so it was never admissible -- it came back as an opaque ResponseOverCapacity (-33008), which is neither of the PR's typed errors, and above ~1.4 MiB the outcome depended on unrelated queued traffic. Cap at STREAM_CHUNK_SIZE (256 KiB), the house per-frame budget for file bytes, which stays in the control lane unconditionally. Also: - Hoist the cap and offset validation into src/shared/file-range-read.ts so the client rejects an out-of-contract request locally instead of paying a round trip for an error that does not survive the wire as a type. - Validate filePath in the relay handler; a missing one threw a TypeError out of expandTilde despite the comment claiming hand-validated params. - Collapse the two fs.getCapabilities probes onto one cached fetch per multiplexer. They read one document, so probing per feature spent an extra round trip per connection and duplicated the eviction logic. - Reuse readFullStreamChunk instead of a second copy of the short-read fill. - allocUnsafe the window; only subarray(0, bytesRead) escapes, so a tailing poll no longer memsets the whole window per call. - Plain methods for readFileRange/supportsFileRangeRead rather than constructor-assigned arrows; both are unconditional, unlike downloadFolder. Tests: cover the dispatch path and fs.getCapabilities (neither was exercised), param validation at both boundaries, EOF at and past the end, and a full-cap read over a real RelayDispatcher. The transport guard fails at 4 MiB with the real -33008.
Orca
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The AI Orchestrator for 100x builders.
Run Codex, ClaudeCode, OpenCode or Pi side-by-side — each in its own worktree, tracked in one place.
Download Orca
Features
Also in the box:
- Quick open — Search across worktrees, files, agents, commands, and repo context without leaving your flow.
- Account switcher & usage tracking — See Claude and Codex usage and rate-limit resets, and hot-swap accounts without re-logging in.
- Rich repo previews — Preview Markdown, images, PDFs, and repo docs in the workspace.
- Computer Use — Let agents operate desktop apps and visible UI when a workflow needs real interaction.
- Notifications and unread state — Know when an agent finishes or needs attention, then mark threads unread to come back later.
- And many, many more — we ship daily, so this list is perpetually behind. The changelog is the real feature list.
Supported Agents
Works with any CLI agent — if it runs in a terminal, it runs in Orca.
Claude Code
Codex
Grok
Cursor
GitHub Copilot
OpenCode
MiMo Code
Amp
OpenClaude
Antigravity
Pi
oh-my-pi
Hermes Agent
Devin
Goose
Auggie
Autohand Code
Charm
Cline
Codebuff
Command Code
Continue
Droid
Kilocode
Kimi
Kiro
Mistral Vibe
Qwen Code
Rovo Dev
+ any CLI agent
Install
Desktop — macOS, Windows, Linux
- Download from onOrca.dev
- Or grab a build directly: macOS Apple Silicon · macOS Intel · Windows (.exe) · Linux AppImage · All builds
- Running
orca serveon a headless Linux server? See the headless Linux server guide.
Or via a package manager:
# macOS (Homebrew)
brew install --cask stablyai/orca/orca
# Arch Linux (AUR) — or stably-orca-git to build from source
yay -S stably-orca-bin
Mobile Companion — iOS, Android
Pair with your desktop app to monitor and steer your agents from your phone.
- iOS: Download on the App Store or join TestFlight
- Android: Download APK 0.0.43 · Install guide
Community & Support
-
Discord: Join the community on Discord.
-
Twitter / X: Follow @orca_build for updates and announcements.
-
WeChat: Scan to join the Orca community WeChat group 7. If it is full, use group 8.
-
Feedback & Ideas: We ship fast. Missing something? Request a new feature.
-
Privacy: See the privacy & telemetry docs for what anonymous usage data Orca collects and how to opt out.
-
Show Support: Star this repo to follow along with our daily ships.
Developing
Want to contribute or run locally? See our CONTRIBUTING.md guide.
Signed Builds
Windows code signing sponored/provided by SignPath.io, certificate by SignPath Foundation.
License
Orca is free and open source under the MIT License.












